23 Echin. 
Physiology, Development. 
1011, 1015 
2. Circulation. 
Osmotic pressure of internal fluids 
in relation to external surroundings; 
Monti, 168. 
3. Respiration. 
Probable branchial papulae on 
tegmen of Hydreionocrinus ; Bather, 9. 
In some Cyst. ; Bather, 11. 
4. Alimentation, etc. 
Petersen, 218. 
Prehensile function of podia in 
anterior ambulacrum of Echinocar- 
dium ; Hawkins, 95. 
In Cothurnocystis ; Bather, 11. 
5. Excretion. 
Colour of Echinoids partly due to 
storage of waste products ; Thomson, 
312. 
6. Sensation. 
Nervous mechanism of righting 
movements of Ast. ; Moore, 169. 
Reaction of Ech., to light ; Mast, 152. 
7. Experimental. 
Morgan, 175. 
Experiments in regonoration ; Stock- 
ard, 298 : Influence of age and 
degree of injury on rate of regenera- 
tion ; Zeleny, 369 & 370. 
Action of light on Ech. ; Dubois, 60 : 
Effect of sunlight on Ast. ; MacCurdy, 
143. 
Influence of electric currents on 
Ech. ; Tschachotin, 322. 
Behaviour of dissociated cells in 
Asterias ; Wilson, 354. 
Solubility of pigment of Echinus 
angulosus ; Thomson, 312. 
DEVELOPMENT. 1015 
1. General Principles. 
Morse, 176 : Rignano, 241 ; Sobotta, 
287. 
Herkunft der Idiochromosomen bei 
Ech ; Baltzer, 7. 
Entwicklung von Echinaster sepo - 
situs ; Rosen, 247. 
2. General accounts. 
Of Strong ylocentrotus, Echinus and 
Arbacia ; Ubisch, 327. 
3. Formation of Gonads. 
McClendon, 138, 139, 140, 141 : 
Marcus, 148 : Russo, 254 : Schaxel, 267. 
Cytology of ova ; Schaxel, 266. 
Chemical changes in gonads of Ech. ; 
Moore et alii, 173. 
“ Blastomerenanarchie ” in Ast. ; 
Eismond, 64. 
4. Oviposition, etc. 
Polyspermy ; Riickert, 253. 
Influence of “ consanguineous fer- 
tilization ” on evolution of Cretaceous 
Ast. ; Spencer, 290. 
Oxidation of developing ova ; 
Mitchell & McClendon, 165. 
5. Larval stages. 
Mtiller, 183. 
Of Antarctic Ech. ; Mortensen, 179 ; 
Ostergren, 203. 
In plankton ; Ostenfeld & Wesenberg- 
Lund, 201 : Scott, 279 : Steuer, 294. 
Of Asterias rubens ; Gemmill, 83 : of 
Vorania pulvillus ; Gemmill, 84 : 
of Echinaster sepositus ; Lohner, 134 : 
of Echinocardium cordatum ; MacBride, 
137 : of Holothuria, Spatangus, Asterias 
Luidia, Ophiactis, Ophiocoma ; Mor- 
tensen, 178. 
6. Organogeny. 
Przibram, 226 : Schaxel, 267. 
Muscles of larval Arbacia ; Ubisch, 
325. 
Skeleton of larval and metamor- 
phosing Echinus ; Ubisch, 326 : Anal 
plates of Crin. larvae ; Clark, A. H., 34. 
7. Post-larval growth stages. 
Of many Neogene Ech., from Medi- 
terranean basin ; Cottreau, 52. 
Relation between skeletons of larval 
and post-larval Ech. ; Ubisch, 326. 
Development of fresh coronal plates 
in Ech. ; Hawkins, 95. 
